Albekt baben breer



A. BABENDREER.

AIH CIRCULATING APPARATUS.

APPLICATION FILED MAY 28. |918.

Patented Dec. 23, 1919.

2 SHEETS-SHEET I.

IV/TNESSES s A TTONE Y.

A. BABENDREER.

AIR CIRCULATING APPARATUS.

APPLICATION man MAY28.1918.

1,325,775. v Patented Dec. 23 919.

2 SHEETS-snm W/TNESSES- VEN TOR ALBERT snnnnnnnnn, or conan staarnesJ Mrssissirrr.

nIn-crncutnrrncarrannrns.

Application led May28, 191%.

in AirCirculating Apparatus, of Which the following isa speeiiication.`

This invention relates to an improved mechanism for taking advantage of the abnormal movements of railvvay cars, ships and all classes of vehiclesor utreight carriers to induce a circulation ot air in the desired direction and between the desired points Within or VWithout the carrier.

My invention is more especially adapted lor"automatically circulating air Within a conveyer for perishable goods so that injury to the latter from uneven temperaturevconditions therein or from stagnant air may be to a large extent obviated ln an application Serial No. 21a-,756, filed by me on the 31st day ot January, 1918, l have described and claimed an automatic circulation apparatus involving a pendent Weight within the carrier adapted to transmit its movements to a diaphragm pump acting by av suitable piping system to ,ein culate air' in the desired manner in the carrier. y

According to` my present invention the pump actuating Weight ismounted vertically so that its zone ci free play is at the top of the car or carrier Where the infiuence upon it of the abnormal or irregular car inovenicntsV is greatest.

My invention further contemplates a floating; mounting of the diaphragm pump itself carrying the upstanding diaphragm actuating Weight and being additionally provided With an elongated pendent Weight arm. The upstanding Weight acts rapidly in response to irregular carrier movements While the longer pendent Weight acts more slowlyl and in opposition thereto so that the tvvo vveights produce a more` eliicient pumping action than would be obtained by the rigid mounting of thepump with the single diaphragm actuating Weight.

My invention will be better understood by reference to the accompanying dravvings, which' form a' part of this specification,

and `in vvhiehti Figure' 1 illustrates a vertical sectional view 4threugh armilnfay` carfequipped: with air circulating apparatus.-

Specicaton of "etters Il?atcnt.

Patented Mec. 23, 1919.

sen-a1 no. stacca Fig. Q` is a front elevation of the circulating apparatus showing a di'erent mounting `for the diaphragm actuating Weight lever and the reverse arrangement of the .intake and discharge pipes.

Figs. 3 and A are side and front views of a modified type of circulating apparatus showing Weights acting on both diaphragm and pump to increase the circulating function of the latter.

Siniilar reference numerals refer to similar parts throughout the drawings.

1n the embodiment of my invention illustinted, l represents a railroad Vcar Which is typical of any movable carrier for the t `ansportation oi perishable goods. A diaphragm pump formed by a dishedl metallic casing 1, having a flexible diaphragm 2 connected thereto by a marginal ring 3, is suitably connected by "a bracket lto the toplvvall ot the car. The ring 3 carries at its bottom portiona yoke bracket 5 in which ispiv- `otally mounted the lower end oi a lever 6 having a' Weight 7 thereon disposed near the top et the car. At an intermediate point the lever is connected by a bracket 8 tothe diaphragm 2 at its center. A pipe 9 leads :trom the dished plate 1 and is connected overhead to a pipe 10 having tvvo similarly disposed check valves 11 and 12 on opposite sides 'of its point of junction with the pipe 9. An intake pipe 13 has its upper end bent at right angles and svvivelly connected to the valve casing 12.' A discharge pipe 11i in like nianner has its upper end bent at right angles and swivelly connected. to.`

the valve casing 11. These pipes can be swung `to diiierent levels 1n the car from vvhiclrit is desired to Withdraw and to which it is desired to deliver the circulating body oi' air.` 1n Fig. 2 the construction `is the same' as that described, except that the diaphragan actuating lever 15 is shorter and is pivoted to rock as a fulcrum on a bracket "16 secured at the top of the ring, the tree ln. operation, the abnormal or irregular' movements ot a car are `imparted to the Weighted lever` 6 or 15 and as the latter moves responsive thereto the diaphragm `et lijhe pumpisfoperated so that air is` taken in tlirc'iigh pipe 13, past valve 1Q: and forcedof the car it follows that the maximum pumping results will be obtained when the lever is disposed. so that the weight may swing on va bottom pivot through an arc as 'close as practicable to the car roof.v

The operation of the weights in Figs. 1 and 2 is substantially the same, the only diierence being that resulting from the use of levers of diierent orders. In Figs. 3 and 4, I illustrate a further modification of my invention wherein the same diaphragm pump is usedexcept that instead of being rigidly mounted `on the bracket 4 it is suspended by means of a bracket 17 from the pipe section 19, which in this case is swivelly mounted in a bracket 18 attached to the roof. rIhe pipe 20, corresponding to 9 yin Fig. 1, is set to one side of the center of the diaphragm pump and enters the marginal edge of the dished plate 1.' The Vpipe 19 is closed at one end and at its other end is `coupled to a pipe 21, correspending to the pipe10 in Fig. 1, and provided with the same arrangement of check valves 11 and 12 and of intake and discharge pipes 13 and 14. A weighted lever 6 is mounted on the kbracket 5V similarly to Fig.

*1, itsl weight 7 being adapted to swing under an out-turned bend 22 in the pipe 19. The dished member'l lolf the pump is provided with-a-bottom ange v23 to which the upper end of a pendulum lever 24 is rigidly attached or formed integral therewith.

weight 25 mounted on the lower end of the Yarm 24, will swing on the pipe 19 as an axis the weighted lever 24, the shorter lever 6 50' will respond more quickly to the irregular movements of the vehicle and will thus promptly cause the diaphragm 2 of the pump to act, this action being ollowed by the slower acting pendulum leverV 24 and .weight 25, which tend to bring the pump and lever back to vertical position ready to respond to the next irregular movement n of the vehicle.

Y Thisinvention is not intended to be restricted in scope to the lspecific embodiments jshown, but contemplates such modications as come within the spirit and scope of the claims.

Having thus described my invention, what I claim as new and desire to secure by Iletters Patent, is

1. In combination, a carrier for transporting perishable goods, and an air circulating apparatus therein comprising a diaphragm pump mounted near the carriers top, a lever fulcrumed to move responsive to abnormal carrier movements and projecting above the pump, a weight on the upper free end of the lever disposed near the carrier top, an operating connection between the lever and diaphragm pump, and piping for the circulating medium.

.2. In an air circulatin@r apparatus for carriers of perishable goods, a pump mechanism mounted to swing relatively to the carrier responsive to abnormal movements of the latter, and a weighted level fulcrumed on the pump and movable responsive to said abnormal carrier movements to operate the pump mechanism.

3. In an air circulating apparatus for carriers of perishable goods, a pump mechanism mounted in and adapted to swing relatively to the carrier responsive to abnormal movements of the latter and having a pendent weight to normally return it to vertical position, and a fulcrumed lever having a weight'at its free end disposed to respond to said abnormal carrier movements, and means to operate the pump mechanism by the relative movements of said weights.

4. In an air circulatin apparatus for carriers of perishable goo s, a pump mechanism mounted to swing in the carrier responsive to abnormal movements of the latter, a pendulum weight rigidly suspended from the pump to return it to vertical position, a lever fulcrumcd on the pump mechanism and carrying a weight which swings on a radius substantially shorter than that of said'pendulum weight, and means to opeiate the pump mechanism by the relative movements of said weights.

5. In a carrier for perishable goods, air circulating piping, an air pump connected to said piping, comprising a body and a movable pumping element, means to swivelly mount the pump in said carrier, a pendent weight rigid with the pump body to right the latter, and a weight mounted on to said body and adapted to operate said movable pumping element.

6. nua carrier for perishable goods, air circulating piping, an air pump associated therewith and comprising a swinging pump body and a movable pumping element, a swivel hanger for said swinging pump body,

. a pendent weight rigid with said pump body, and a vertical lever weighted at its top and circulation piping having an intermediate portion. and ends disposed at right angles to and swivell connected to said p0rtion, a hanger in W iieh the intermediate pipe portion is Swiveled, a diaphragm pump conneeted to and swung from said pipe portion and having a pendent Weight, a lever pivotally mounted on the pump and having on its upper free end a Weight, and a Connection from the iever to the diaphragm pump i to operate the latter.

In testimony whereof I afix my signature.

ALBERT BABENDRJEER. Witness:

A. S. GORENFLO. 

